Home / 12,767.60-17,604.75-8,989.55

Finding the Fourth Proportional to 12,767.60, 17,604.75 and 8,989.55

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Solution

The fourth proportional to 12,767.60, 17,604.75 and 8,989.55 is: 12,395.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.60 : 17,604.75 = 8,989.55 : x
  2. Step 2: Convert to fraction form
    12,767.60/17,604.75 = 8,989.55/x
  3. Step 3: Cross multiply
    12,767.60x = 17,604.75 × 8,989.55
  4. Step 4: Simplify right side
    12,767.60x = 158,258,858.09
  5. Step 5: Solve for x
    x = 158,258,858.09/12,767.60
  6. Step 6: Final answer
    x = 12,395.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.